An Effective and Secure Buyer-Seller Watermarking Protocol. - Ibrahim Mostafa Ibrahim; Sherif Hazem Nour El-Din; Abdel Fatah A. Hegazy (IAS, 2007)

An Effective and Secure Watermarking Protocol for Digital Rights Protection over the Second-Hand Market. - Ibrahim Mostafa Ibrahim; Sherif Hazem Nour El-Din; Abdel Fatah A. Hegazy (SECRYPT, 2007)

A robust cryptographic-based system for secure data sharing in cloud environments. - Ibrahim M. Mahmoud; Sherif Hazem Nour El-Din; Rania Elgohary; Hossam El Deen Mostafa Faheem; Mostafa G. M. Mostafa (Secur. Commun. Networks, 2016)

A Robust Generic Multi-Authority Attributes Management System for Cloud Storage Services. - Ibrahim Mostafa Ibrahim; Mostafa G. M. Mostafa; Sherif Hazem Nour El-Din; Rania Elgohary; Hossam El Deen Mostafa Faheem (IEEE Trans. Cloud Comput., 2021)